The Celtics could use a shot blocker, but they're already well-staffed at the power forward position with Kevin Garnett, Brandon Bass and Jared Sullinger. Martin, 34, had the least productive season of his career last year with the Los Angeles Clippers, averaging a career-low 8.6 points per 36 minutes with a rebounding rate, 11.5, that was the third-worst of his 12-year career.

The Celtics could still add another body prior to training camp, which begins Sept. 29. But they're more likely to acquire someone with the ability to play center. Martin, despite being one of the most recognizable names left on the market, doesn't fit Boston's biggest remaining need.